Under certain conditions, it is possible to run on ethanol. In principle, this is a modification of the car. In order for it to work properly with bioethanol, it is necessary: Hello, I drive a lot, can you please give me a list of French vehicles that can run on ethanol after a modification. I need to buy a used gasoline vehicle first and I don`t want to make a mistake with my purchase. Thank you very much Gilles Doleac If the vehicle`s engine is equipped with a carburetor, do not drive without an ethanol modification. The vast majority of these machines have a fuel cycle that is not compatible with bioethanol. With such an engine, it is necessary to manually adjust the ignition supply and replace the nozzle or nozzles with larger models. In addition, such a modification prevents the use of standard gasoline in the future. A serious study should be conducted on the basis of prolonged use to draw solid lessons about cars that can run on ethanol without modification. In the end, this always remains at the owner`s own risk. Manufacturers such as Volvo, Saab, Dacia, Ford, Opel and Renault offer vehicles that can run on ethanol without modification.

By default, they were made with ethanol. Each brand has a specific bill of materials to indicate that a model is compatible with ethanol by default. While conventional fuels blithely exceed the €2/L mark, some drivers are tempted to fill up with the E85. Superethanol is compatible with petrol engines and is particularly economical: it is currently sold at €0.90/L. To use it in an unsuitable original vehicle, it is generally advisable to install a kit. But what is the risk of driving the E85 without this expensive kit? How to drive the E85 without a box? Bioethanol is a drier and less lubricating fuel In addition, as we explained at the beginning of the article, most engines after the 2000s are processed to run on E85. Thus, this fuel does not damage the mechanical parts and engine of your vehicle. [Updated 03.05.2021] Let`s be clear: until then, despite the speech of some sellers who presented their CE approval, electronic boxes to run on superethanol E85 were banned. Hello So I reprogram a Renault Espace of 2005 2.0T to run on bioethanol Thank you for giving me the info Especially the undersized injectors, which, despite the extension of the injection time, will not be able to provide the necessary amount of fuel. We are then in case of too bad mix with the above risks. The ECU can also interpret the fact that, for example, 20% more fuel is used as a shortage.

It then automatically switches to deteriorated mode with the ignition of the engine indicator on the dashboard. The vehicle will drive, but with a great loss of power and significant consumption. Some motorists say that there is no risk in making compounds, a little unleaded, a little E85 and voila! While it`s true that you could potentially drive with a 20% ethanol/80% lead-free blend without much trouble, we don`t recommend it. After several mixtures, you are unable to accurately calculate the ethanol content of your tank, and complications may occur. In addition, we would like to remind you that despite the fact that it is theoretically “functional”, this process remains completely illegal. To prevent the vehicle`s original ECU from exceeding its correction limits, it is preferable to gradually increase the dose of superethanol E85 in the tank. Start with 20%, then 50% until the famous light appears (or not) (a return to a “normal” fuel should make it disappear). Be careful, it is also necessary to proceed in the same way in the other direction.